Ventilating apparatus



2 Sheets-Sheet F. C. DUERK VENTILATING APPARATUS Flled July 50, 1925Oct. 9, 1928.

' INVENTOR. Frederick C. DuerK ATTORZ Y5.

Oct. 9, 1928. 1,687,156

F. c. DUERK VENTILATING APPARATUS Filed July 30, 1925 2 Sheets-Sheet 2INVENTOR.

Frederick E. DuerK A TTORA .35.

enema Oct. 9, 1928.

PATENT OFFICE.

FREDERICK c. mmnx, or DEFIA CE, omo.

VENTHATING APPARATUS.

Application filed Jul so, 1925. Serial m. 46,970.

This invention relating as indicated to a. ventilating device is moreparticularly di rected to an improved type of ventilator and airpurifying system for use on railway cars and like public conveyances.The primary object of the invention is to provide means which maybeattached or assembled on an ordinary passenger car without greatlymoditying the structure thereof, said means being adapted to maintain avariable how of fresh air through the interior of the car. A furtherohject oi the invention is to provide in connection with a railroad cara ventilatapparatus having et ports at either end of the car on oppositesides thereof and cooperating discharge ports, which are adapted toconduct fresh air from the front end of the moving car into its interiorand to discharge the iouluir atthe rear end. e inlet and outlet portsare actuated by mechanism automatically operated hy the direction ofmovement of the car to open the inlet and cooperating discharge outlete. to open the inlet at the end of the car which is traveling forwardand the outlet at the rear end thereof on the opposite side.

The invention also contemplates the provision of a ply constructedinexpensivev ventilating apparatus which is accessible for repair andudjent, and in which is employed scg device that may he quickly removedfor clea as by an attendant a train is stopping at a terminal.

To the accomplishment oft the foregoing an related ends, said inventionthen consists of the means hereinafter hilly descnhed and particularlypointed out. in the claims The annexed drawing and following descriptionset forth in detail mechanism emhodying the invention, such disclosedmeans constituting however hut one of the various mechanical forms inwhich the principle of the invention may he in said exed Jigs: g Fig. 1is a side elevation of a conventional type of railway passenger showingthe present improved ventilating system as applied thereto.

Fig. 2 is an enlarged longitudinal crom-sectzlonal view taken throughone end of said car. Fig. 3 is a transverse sectional view taken on line33 of Fig. 2.

Fig. 4 is a detailed view showing manually the mode of operation of thepresent invention.

The present embodiment of the invention illustrated in said drawingsrefers to the application of my improvement in ventilating apparatus ona railroad passenger car, it being obvious, however, that the essence ofthe invention may be slightly modified to adapt the same for use onstreet-cars, motor busses or the like.

Essentially the apparatus comprises'an air inlet positioned at theforward end of a car counicating with a vertical passage which leads toa second passage disposed longitudinelly at the top of the car. In thevertical passage are located the several devices of this inventionadapted to purity and control the dew of air to such longitudinalpamage, which latter pasage is provided with suitable outlet portscounicating with the interior of the car. In railway car constructionthere are vertical passageways located at the ends-"thereof at eitherside of the entrance doors, and also a horizontal passage at each sideedge of the roof portion. It has n found that the same may beadvantageously employed in connection with the ventilat ng system ofthis invention. As stated above, there is provided an inlet port at eachend of the car, and it is intended that one of these inlet portscommunicates with one of thehorizontal pamges while the other inlet comemunicates with the horizontal pamage on the other side of the car.

Referring now to'the drawings, particularly Figs. 2 and 3, the railwaycar has entrance passageway 11 at either end, steps 12, andsuitablewheels 13 mounted. on axles 14. In the end walls 15 at each endof the car, there is provided a. vertical passageway 16 whichcommunicates with horizontal passageways 17 and 18 extending along theupper side edges. The vertical passages 16 normally extend from thefloor line to such horizontal pasage and in this invention there isattached to the lower end 20 thereof an inlet scoop 21 having itsopening 22 d1- 1 direction of movement of the car. fore, a similarsuction scoop 28 is provided at rected toward the adjacent end of thecar. This opening 22 is positioned at the extreme side edge of the carand air is permitted to pass by the adjacent step portion into the scoop21 where it is directed upwardly throughthe passages 16 and 17 into theinterior of the car. The horizontal passage 17 is provided with inwardlydirected outlet ports 25 through which the air enters the interior ofthe car while the other horizontal passage 18 has similar ports 26'through which the air may enter from the interior of the car to suchpassage to be discharged. A scoop 27 is provided at the rear end of thecar in communication with the passage 18 and in operation serves notonly as a discharge port for foul air, but also as a suction scoop todraw the air from passage 17 into the interior of the car and thencethrough the ports in the passage 18. As has been stated above, an inletis provided at each end of the car to permit the present ventilatingdevice to be employed regardless of the Therethe upper end. of thevertical passage 16 in communication with passage 17 which scoopfunctions when the car is moved in the opposite direction, at which timepassageway 18 is then the inlet and passageway 17 the out- I let. Thesame will be apparent from an in- 'sists of a framework 35-removablyspection of Fig. 6.

Mounted in each of the vertical passageways 16 at the lower end thereofis a valve or damper member 30 which is actuated by suitable mechaism tocontrol the flow of air from the adjacent inlet 22. In the illustratedembodimentof the invention, the valve 30 is able links 32 and 33, itbeing obvious that many types of temperature actuated mechanism may beemployed for this purpose.

Mounted in the passageway 16 directly above the valve or damper member30 is an air screening device which is adapted to remove from the airpassing therethrough such dirt and cinders that are in the air alongrailroad systems. This screening device conounted in the passageway 16and having a plurality of screens 36 transversely disposed across thepassage 16. At any conven ent place there may be provided a hinged door37 which may be swung open to permit the removal of the screen frametogether with screens 36 for cleaning purposes, such door being hereshown as provided at the inner side wall 38 common method has beenemployed'to counteract gases used in war-time which consist of activatedcharcoal and soda lime, and it has been found that the same may be usedin the present instance, with slight modifieaprises an openingcommunicating the pas-v sage 17 with the interior of the car, and havinga deflecting member 46 at its inner,end. Movable within the passage 17along the upper side of the lower wall thereof 1s a sliding member 47 inwhich is provided a hole 48 adapted in one position to register with theopening 45. When it is desired to reduce orshut off the flow of air tothe interior of the car, slide 47 is moved to position the solid portionthereof over the opening 45. In use a slide 47 may be provided at eachport 25 and suitable handles 49 or other actuating mechanism positionedat various points where they may be operated by the occupants of thecar, the same being of particular advantage in Pullman sleeping cars.

As has been stated hereinbefore, there is provided in communication withthe upper end of passage 16, a suction scoop on the exterior of the car.The scoops 27 and 28 are best shown at 50 in Fig. 3 and provides apassage 51 connecting the passage 16 to the exterior. Means forautomatically closing the suction scoop of the ventilating conduit inuse, that is,.the one at the end of the car moving forwardand forautomatically opening the scoop at the other end of the car consists ofdoors 52 pivoted within the passage 16 and adapted to close off suchsuction scoops. A lever 53 is attached to hinge portion of door 52 andis connected by a link 54, which has its lower end attached to a bellcrank 55. .This crank 55 is pivoted beneath the floor of the car and isactuated by a shoe member 56 pivoted in a bracket 57 depending from thecar floor, The lower surface of shoe 56 is adapted to engage withtheaxle 14 of the car and be moved in a direction depending upon themovement of the car. Means as a link 58 is utilized'to connect the shoemember 56 with the bell crank arm 55.

To eliminate excessive wear on the axle engaging surface 59 of the shoe56 certain mechanism is provided by this invention to remove such shoeout of contact with the axle after the pivoted .door ,52 has been movedto proper position. The shoe member is carried by the bIaQ etS .57 1; as aft 60 whlch 15 llo till) journaled in vertical slots 61 provided insuch brackets. Engaged between the lower ends of slots 61 and shafts arecompression springs which tend to keep the shoe member 56 normallypressed upwardly and out of engagement with the axle 14. A vertical pushrod 62 is positioned above the upper end 63 of shoe 56 which rod extendsthrough the car floor and has, on its upper end a pedal member 64. Inthe operationof the present ventilating apparatus when it is desired toset the same to control the flow of air to the interior of the cardepending upon the direction of movement thereof, the attendant merelydepresses the shoes 56 at each end of the car by placing his foot on thepedal member 64 at the time the car is first started in motion. Thiswill properly position the doors 52 adjacent the suction scoops andcondition the ventilating apparatus for operation. lit desired, only oneshoe may he employed to control the doors 52 at each of the suctionscoops. in which case a rod will be attached tothe shoe (as shown indotted lines, Fig. 2) and to the second hell crank 55 at the oppositeend of the car. By this construction the door 52 is closed at one end bythe movement of the shoe 56 and the door at the other end simultaneouslyopened. Means are also provided which serve to keep the shoes togetherwith the pivoted doors 52 in set position after once having heen movedby engagement of the shoe with the axle ltd. This latter mews comprisesa pair of tension springs 66 and 67 attached at one end to suitableprojections 68 on the lower side of the car tloor or frame. The otherends of the springs are engaged in slots 69 md 70 provided in the shoemember 56 at either side of its pivotal point 6Q. As seen in Fig. 2 ofthe drawings, it will ap pear that as the shoe is moved to one side ofits central pivot. the end of the spring at that side will move alongthe slot to the end which is nearest the support 68. Likewise will theend of the other spring move to the nearest end of its cooperating slotin the shoe menr her 56. Such mechanism is very similar to well-Morinselt-loclringrtoggle linlr construction, and serves to eififectively lmhthe shoe 56 in set position.

lit will he apparent from the foregoing that l have accomplished theobjects primarily stated, and that l have devised certain new endimproved ventilating apparatus which is adapted to conduct air into theinterior-of a vehicle, which air is acted upon by certain devices toremove dust and cinders therefrom and to purify its condition. While inthe present embodiment the invention is shown in connection with railwaypassenger cars, it will be obvious that ,the same may be utilized in thefront end of motor husses or the like to convey air from the front endthereof to the interior of the car end of the vertical in a purifiedcondition.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the followingclaims or the equivalent of such stated end and for closing thedischarge port at the front end thereof.

2. The combination with a railroadpassenger car having a vertical airpassage in the end wall and a communicating horizontal air passage, inthe roof thereof, of an air intake mounted at the lower end of saidvertical passage, a discharge port-located at the upper end of thevertical passage, and means including a door for closing ofi saiddischarge port, said means being actuated by the running mechanism ofthe train.

3. The combination with a railroad passenger car having a vertical airpassage in the end wall and. a communicating horizon tal air passage inthe roof ,thereof, of an air intake mounted at the lower end of saidvertical passage, a discharge port located at the upper end of thevertical passage, a door for said discharge port, and means engaging theaxle of the car for closing said door upon rotation of the axle in onedirection.

4. The combination with a railroad passenger car having a vertical airpassage in the end wall and a communicating horizontal air passage inthe roof thereof, of an air intake mounted at the lower end of saidvertical passage, a discharge port located at the upper end of thevertical passage, a door for said discharge port, a pivoted membermounted to engage the car axle, and connections between said member andsaid door, said memher being actuated by the rotation of the axle in onedirection to close said door.

5. The combination with a railroad passenger car having a vertichl airpassage in the end wall and a communicating horizontal air passage inthe roof thereof, of an air intake mounted at the lower end of saidvertical passage, a discharge port located at the upper passage, 2. doorfor said dimharge port, a pivoted member mounted on the underside of thecar floor, said member being yieldingly supported transaxially t ll lmi

senger car having a vertical air passage in the end wall and acommunicatlng horizontal air passage in the roof thereof, of an airintake mounted at the lower end of said vertical passage, a dischargeport located at the upper end of the vertical passage, a door for saiddischarge port, a pivoted. member mounted on the underside of the carfloor, said member being yieldingly supported transaxially of the caraxle, and having a surface adapted to engage said axle, connectionsbetween said member and said door whereby the latter may be actuated bythe pivotal movement of the former, and a pedal member for engaging saidpivoted member with-the axle.

7. The combination with a railroad passenger car having a vertical airpassage in the end wall and a communicating horizontal air passage inthe roof thereof, of an air intake mounted at the lower end of saidvertical passage, a discharge port located at the upper end of thevertical passage, a door for said discharge port, a pivoted membermounted on the underside of the car floor, said member being adapted toengage said axle and be moved thereby, connections between ,said' memberand said door, and means adapted to hold said member in thepositionmoved by said axle.

8. The combination with a railroad passenger car having a vertical airpassage in,. the end wall and a communicating horizontal air passage inthe roof thereof, of an air intake mounted at the lower end of saidvertiber being adapted to engage said axle and be moved thereby,connections between said member and said door, and springs attached tothe car frame and to slots in each side of said member, said springsserving to hold the member in the position where it is moved by saidaxle.

Signed by me this 27th day of uly, 1925.

FREDERICK C. DUERK.

